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The senior Scotland Yard officer who locked himself in his car during the Westminster terror attack is due to retire within weeks, as pressure mounts on the police watchdog to investigate his conduct.

Deputy Commissioner Sir Craig Mackey will step down from the force in December after 34 years of service.

But his admission that he failed to intervene when he witnessed terrorist, Khalid Masood, attacking and murdering Police Constable, Keith Palmer, has sparked widespread anger among the public and many of his policing colleagues.

Sir Craig, who was Acting Commissioner at the time, said it had been his "instinct" to get out of the car, but he had been in a short sleeved shirt with no equipment....

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